Both sides point out that Saudi Arabia had a dismal human rights record even before this incident:

“MBS rounded up his family members and imprisoned them at the Riyadh Ritz-Carlton a year ago; apparently kidnapped the prime minister of Lebanon in a bungled scheme to cast suspicion on Iran; and pursued (with U.S. support) a proxy war against Iran in Yemen that has yielded what the United Nations deems ‘the world’s largest humanitarian crisis’... the American business and political Establishments’ highly public revulsion to the Khashoggi murder rings hollow, given the widespread public knowledge of the Kingdom of Saudi Arabia’s awful human-rights record.” New York Magazine

“For all the hasty cancellations from the so-called ‘Davos in the Desert,’ Silicon Valley is unlikely to totally cut the cord... Saudi Arabia has invested more than $6.2 billion in American tech companies [in the last decade]... Silicon Valley is so dependent on Saudi funding at this point that ‘if you remove the Saudis from the worldwide global network, everything collapses.’"

New York Magazine

Worth noting: “The international oil price is down about $9, from $85 just after Khashoggi’s murder to $76 on Tuesday... While Saudi political leaders produced fumbling explanations for the murder, the oil minister stepped forward... [and] promised another 300,000 barrel-per-day increase ‘soon’ and said the kingdom still had another 1 million barrels of spare capacity it could call upon...

“Trump has a weak hand. He knows that the Saudis’ influence over U.S. gasoline prices gives them leverage in U.S. elections. Until the voting is done, bet on this: The president will find it hard to get tough on his Saudi friends.”

Politico

Many argue that “for years, Saudi Arabia has gotten away with funding terrorism and extremism, suppressing the rights of its people and silencing its critics, often by killing them. These are all activities for which the United States rightfully punishes Iran. But it allows the Saudis to do the same things without reproach. It is time for that double standard to end."

“[In addition to] applying sanctions... Congress and the Trump administration should condition weapons sales on concrete steps by Riyadh to end the disastrous war in Yemen. They should push hard for a repair of the Gulf rupture... Above all, Washington should telegraph that a continued strategic partnership with Saudi Arabia is possible and desirable—but only if Riyadh acts more responsibly and with far greater principle.”

The Atlantic

From the Right

The right believes the Saudis must face consequences for the killing, but generally does not favor stopping arms sales or similar measures.

“[However] Trump administration officials must make clear to their counterparts in Saudi Arabia that engaging in such actions as the murder of a well-known journalist with connections to the United States, will in fact undermine our relations with that country.”

Townhall

“Since MBS shares America’s core interests, it makes sense for the administration to embrace him as an ally. But by presenting [his] reforms as the harbinger of a new, liberal Saudi Arabia, the administration set itself up to be attacked later. The Khashoggi’s murder has highlighted the obvious fact that MBS, like all of his Saudi counterparts — as well as Erdogan and the Iranians — is an autocrat who is comfortable brutally silencing critics and opponents."

Breitbart

Yet, “in this moment, caution and prudence are called for. In spite of their atrocious human rights record, Saudi Arabia remains a vital ally. America should be careful about what measures it takes in retaliation. In addition to Saudi’s obvious importance in international energy markets, Saudi is the linchpin of the growing anti-Iran coalition... It would be better to respond to Khashoggi’s murder by pressuring the Saudi regime to release political prisoners."

Minority View: “The time may be right for President Trump to cease leading from behind, to step out front, and to say that, while he withheld judgment to give the Saudis every benefit of the doubt, he now believes that the weight of the evidence points conclusively to a plot to kill Jamal Khashoggi. Hence, he is terminating U.S. military aid for the war in Yemen that Crown Prince Mohammed has been conducting for three years."